<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>杨澎锴的实践作业26-vue.js</title>
    <!-- 开发环境版本，包含了有帮助的命令行警告 -->
    <script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
  </head>
  <body>
    <h1>vuejs过滤器</h1>
    <section>
      <div id="app">
        <p>{{message | toUpper}}</p>
      </div>
      <script>
        var app = new Vue({
          el: "#app",
          data: { message: "abcdefg" },
          //   设置自动转换大小写
          filters: {
            toUpper: function (value) {
              return value.toUpperCase();
            },
          },
        });
      </script>
    </section>
  </body>
</html>
